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See detailData-driven probabilistic post-earthquake fire ignition model for a community
Elhami Khorasani, Negar; Gernay, Thomas ULiege; Garlock, Maria

in Fire Safety Journal (2017), 94

Fire following earthquake (FFE), a cascading multi-hazard event, can cause major social and economical losses in a community. In this paper, two existing post-earthquake fire ignition models that are ... [more ▼]

Fire following earthquake (FFE), a cascading multi-hazard event, can cause major social and economical losses in a community. In this paper, two existing post-earthquake fire ignition models that are implemented in Geographic Information System (GIS) based platforms, Hazus and MAEViz/Ergo, are reviewed. The two platforms and their FFE modules have been studied for suitability in community resiliency evaluations. Based on the shortcomings in the existing literature, a new post-earthquake fire ignition model is proposed using historical FFE data and a probabilistic formulation. The procedure to create the database for the model using GIS-based tools is explained. The proposed model provides the probability of ignition at both census tract scale and individual buildings, and can be used to identify areas of a community with high risk of fire ignitions after an earthquake. The model also provides a breakdown of ignitions in different building types. Finally, the model is implemented in MAEViz/Ergo to demonstrate its application in a GIS-based software. [less ▲]

Detailed reference viewed: 44 (2 ULiège)
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See detailData-driven selection of the minimum-gradient support parameter in time-lapse focused electrical imaging
Nguyen, Frédéric ULiege; Kemna, Andreas; Robert, Tanguy et al

in Geophysics (2016), 81(1), 1-5

We have considered the problem of the choice of the minimum-gradient support (MGS) parameter in focused inversion for time-lapse (TL) electric resistivity tomography. Most existing approaches have relied ... [more ▼]

We have considered the problem of the choice of the minimum-gradient support (MGS) parameter in focused inversion for time-lapse (TL) electric resistivity tomography. Most existing approaches have relied either on an arbitrary choice of this parameter or one based on the prior information, such as the expected contrast in the TL image. We have decided to select the MGS parameter using a line search based on the value of the TL data root-mean-square misfit at the first iteration of the nonlinear inversion procedure. The latter was based on a Gauss-Newton scheme minimizing a regularized objective function in which the regularization functional was defined by the MGS functional. The regularization parameter was optimized to achieve a certain target level, following the Occam principles. We have validated our approach on a synthetic benchmark using a complex and heterogeneous model and determined its effectiveness on electric tomography TL data collected during a salt tracer experiment in fractured limestone. Our results have determined that the approach was successful in retrieving the focused anomaly and did not rely on prior information. [less ▲]

Detailed reference viewed: 156 (32 ULiège)
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See detailData-Interpolating Variational Analysis (DIVA) software: recent development and application
Watelet, Sylvain ULiege; Back, Örjan; Barth, Alexander ULiege et al

Poster (2016, April 20)

Detailed reference viewed: 25 (4 ULiège)
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See detailData-model comparison using fuzzy logic in paleoclimatology.
Guiot, Joël; Boreux, Jean-Jacques ULiege; Braconnot, P. et al

in Climate Dynamics (1999), 15(8), 569-581

Until now, most paleoclimate model-data comparisons have been limited to simple statistical evaluation and simple map comparisons. We have applied a new method, based on fuzzy logic, to the comparison of ... [more ▼]

Until now, most paleoclimate model-data comparisons have been limited to simple statistical evaluation and simple map comparisons. We have applied a new method, based on fuzzy logic, to the comparison of 17 model simulations of the mid-Holocene (6 ka BP) climate with reconstruction of three bioclimatic parameters (mean temperature of the coldest month, MTCO, growing degree-days above 5 °C, GDD5, precipitation minus evapotranspiration, P−E) from pollen and lake-status data over Europe. With this method, no assumption is made about the distribution of the signal and on its error, and both the error bars related to data and to model simulations are taken into account. Data are taken at the drilling sites (not using a gridded interpolation of proxy data) and a varying domain size of comparison enables us to make the best common resolution between observed and simulated maps. For each parameter and each model, we compute a Hagaman distance which gives an objective measure of the goodness of fit between model and data. The results show that there is no systematic order for the three climatic parameters between models. None of the models is able to satisfactorily reproduce the three pollen-derived data. There is larger dispersion in the results for MTCO and P−E than for GDD5. There is also no systematic relationship between model resolution and the Hagaman distance, except for P−E. The more local character of P−E has little chance to be reproduced by a low resolution model, which can explain the inverse relationship between model resolution and Hagaman distance. The results also reveal that most of the models are better at predicting 6 ka climate than the modern climate. [less ▲]

Detailed reference viewed: 53 (6 ULiège)
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See detailDatabase "SIGMA Pro" information system and bibliographical management of active substances of plant protection products and biocides.
Rung, J.; Tricot, B.; Copin, A. et al

in Toegepaste Biologische Wetenschappen) (2001), 66(2b),

Detailed reference viewed: 12 (0 ULiège)
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See detailDatabase and general modelling concepts for groundwater modelling in the SQUASH Project
Orban, Philippe ULiege; Popescu, Ileana-Cristina; Ruthy, Ingrid ULiege et al

in Hidrotehnica (2004), 49(9-10), 51-57

Detailed reference viewed: 29 (3 ULiège)
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See detailA database of Ap stars
Renson, Pierre ULiege; Kobi, D.; North, P.

in Astronomy and Astrophysics. Supplement Series (1991), 89

A database for 3195 Ap stars, which can be used on an IBM-compatible personal computer, is described. It is essentially based on Renson's general catalogue of Ap and Am stars, but contains much additional ... [more ▼]

A database for 3195 Ap stars, which can be used on an IBM-compatible personal computer, is described. It is essentially based on Renson's general catalogue of Ap and Am stars, but contains much additional information. It operates within the Dbase III Plus system. [less ▲]

Detailed reference viewed: 7 (0 ULiège)
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See detailA database of astrophysical interest covering the UV region
Biémont, Emile ULiege; Quinet, Pascal ULiege

in Journal of Electron Spectroscopy & Related Phenomena (2005), 144-147

Our knowledge of the spectra of the rare-earths is still very poor due to the fragmentary laboratory analyses, on the one hand, and to the complexity of the configurations involving unfilled 4f shells, on ... [more ▼]

Our knowledge of the spectra of the rare-earths is still very poor due to the fragmentary laboratory analyses, on the one hand, and to the complexity of the configurations involving unfilled 4f shells, on the other hand. The database DREAM (Database on Rare Earths at Mons University) contains presently radiative parameters (wavelengths, levels, transition probabilities, Land´e factors) for over 60 000 transitions and is continuously updated. The different tables, which cover not only the UV region, but also the visible and near infrared spectral ranges, which are located on the web page: http://www.umh.ac.be/∼astro/dream.shtml. Up to now, data are tabulated for the following ions : La III, Ce II, Ce III, Pr II, Pr III, Nd II, Nd III, Sm II, Sm III, Eu III, Gd III, Tb III, Dy III, Ho III, Er II, Er III, Tm II, Tm III, Yb II, Yb III, Yb IV, Lu I, Lu II and Lu III. Some information is also provided for Th III. The relevant references (about 40 papers), summarizing and discussing the new experimental and theoretical results obtained during the past few years, are given on this web site. [less ▲]

Detailed reference viewed: 15 (0 ULiège)
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See detailThe Database of Egyptian Building Envelopes (DEBE): A database for building energy simulations
Attia, Shady ULiege; Wanas, O.

in Proceedings of SimBuild 2012 (2012, August 01)

This paper is a part of an ongoing research that aims to describe the influence of building constructions on energy consumption through a survey that is conducted in Cairo and its surrounding residential ... [more ▼]

This paper is a part of an ongoing research that aims to describe the influence of building constructions on energy consumption through a survey that is conducted in Cairo and its surrounding residential neighbourhoods. An inventory of the selected neighbourhoods envelope constructions and their characteristics is described in accordance with the new Egyptian energy standard for residential buildings. After thorough screening and classification, the constructions are digitalized and uploaded in an online open source database where constructions properties are listed, made available in .idf and .ddb formats (EnergyPlus and DesignBuilder respectively) and illustrated graphically. This Database of Egyptian Building Envelopes (DEBE) facilitates the input modelling of constructions and enables users to explore standard complying alternative constructions. [less ▲]

Detailed reference viewed: 201 (6 ULiège)
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See detailLes datacenters, métaphore du capitalisme
Thoreau, François ULiege

Article for general public (2014)

Detailed reference viewed: 78 (8 ULiège)
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See detailA dataset for hadron elastic scattering
Cudell, Jean-René ULiege; Lenguel, Sasha; Martynov, E.

Textual, factual or bibliographical database (2007)

Detailed reference viewed: 41 (9 ULiège)
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See detailDatasets for Testing Probabilistic Models of Choice using Column Generation
Spieksma, Frits C.R.; Davis-Stober, Clint; Regenwetter, Mike et al

Textual, factual or bibliographical database (2017)

Detailed reference viewed: 36 (1 ULiège)
See detailDatasheet for stainless steel products
Rossi, Barbara ULiege

in Bragança, Luis; Koukkari, Heli; Blok, Rijk (Eds.) et al Integrated approach towards sustainable constructions (2011)

This datasheet concerns life-cycle inventory of common stainless steel products. It was prepared using data coming from Aperam (formerly ArcelorMittal Stainless Europe) for an easy and straightforward use ... [more ▼]

This datasheet concerns life-cycle inventory of common stainless steel products. It was prepared using data coming from Aperam (formerly ArcelorMittal Stainless Europe) for an easy and straightforward use of it in life-cycle analysis of buildings (whole or parts of it) and stainless steel constructions. [less ▲]

Detailed reference viewed: 41 (8 ULiège)
See detailDatasheet for steel products
Rossi, Barbara ULiege

in Bragança, Luis; Koukkari, Heli; Blok, Rijk (Eds.) et al Integrated approach towards sustainable constructions (2011)

This datasheet concerns life-cycle inventory of common steel products. It was prepared using data coming from Worldsteel association for an easy and straightforward use of it in life-cycle analysis of ... [more ▼]

This datasheet concerns life-cycle inventory of common steel products. It was prepared using data coming from Worldsteel association for an easy and straightforward use of it in life-cycle analysis of buildings (whole or parts of it) and steel constructions. [less ▲]

Detailed reference viewed: 40 (4 ULiège)
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See detailDatation par les spores du début de la sédimentation carbonifère dans l'ouest du Synclinorium de Chateaulin, Massif Armoricain.
Morzadec, P; Paris, F; Pelhate, A et al

in Comptes Rendus de l'Académie des Sciences. Paris (1975), 281(D), 1955-1957

Detailed reference viewed: 15 (1 ULiège)